Reviewed: https://review.opendev.org/c/openstack/neutron/+/944327
Committed:
https://opendev.org/openstack/neutron/commit/98b006b7e061752ae0cd3148d9308e2070240c11
Submitter: "Zuul (22348)"
Branch: master
commit 98b006b7e061752ae0cd3148d9308e2070240c11
Author: Rodolfo Alonso Hernandez <ralon...@redhat.com>
Date: Fri Mar 14 02:14:41 2025 +0000
Fast exit if "segments" plugin is not loaded
The method ``auto_schedule_new_network_segments`` will be called when a
new agent is created and the segment host mapping is updated. If the
"segments" plugin is not loaded, the method
``auto_schedule_new_network_segments`` should fast exit.
Closes-Bug: #2102609
Change-Id: I46d58e1f7f9f6b0fdb70f2298839ee5423722e11
** Changed in: neutron
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/2102609
Title:
DHCP scheduler failing when an agent is added and "segments" plugin
not loaded
Status in neutron:
Fix Released
Bug description:
Since [1], when a new agent is added, the event (SEGMENT_HOST_MAPPING,
AFTER_CREATE) is called. That calls the method
``auto_schedule_new_network_segments`` [2]. If the "segments" plugin is not
loaded, that will raise the following exception: [3]
"""
ERROR neutron_lib.callbacks.manager [None
req-7a8042b5-ec95-432e-a03c-3770628cc424 None None] Error during notification
for
neutron.plugins.ml2.plugin.DhcpAgentSchedulerDbMixin.auto_schedule_new_network_segments-2354089
segment_host_mapping, after_create: AttributeError: 'NoneType' object has no
attribute 'get_segments'
ERROR neutron_lib.callbacks.manager Traceback (most recent call last):
ERROR neutron_lib.callbacks.manager File
"/opt/stack/neutron-lib/neutron_lib/callbacks/manager.py", line 189, in
_notify_loop
ERROR neutron_lib.callbacks.manager callback.method(resource, event,
trigger, payload=payload)
ERROR neutron_lib.callbacks.manager File
"/opt/stack/neutron/neutron/db/agentschedulers_db.py", line 494, in
auto_schedule_new_network_segments
ERROR neutron_lib.callbacks.manager segments =
segment_plugin.get_segments(
ERROR neutron_lib.callbacks.manager AttributeError: 'NoneType' object has no
attribute 'get_segments'
ERROR neutron_lib.callbacks.manager
"""
[1]https://review.opendev.org/q/I8112076f8acb821752941396e7aa39ecb1352ca3
[2]https://github.com/openstack/neutron/blob/e47aed1508badcf2f52e0a5ced932abf9ff73655/neutron/db/agentschedulers_db.py#L487-L509
[3]https://paste.opendev.org/show/bZRtBWdRNT8o8roOSlm1/
Jira reference: https://issues.redhat.com/browse/OSPRH-14753
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